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I'm Santiago Wu, a mobile engineer based in Singapore. I specialize in building robust iOS apps and integrating cutting-edge tech like AR, TRTC, Solana and Ethereum into delightful user experiences. Over the past decade I've shipped features for education, finance, and gaming, leading teams and delivering high-performance apps across iOS, Android and web platforms. I'm passionate about clean architecture, test-driven development, and mentoring teammates to grow. I enjoy learning new frameworks, contributing to open-source projects, and exploring the intersection of mobile apps and blockchain.…I'm Santiago Wu, a mobile engineer based in Singapore. I specialize in building robust iOS apps and integrating cutting-edge tech like AR, TRTC, Solana and Ethereum into delightful user experiences. Over the past decade I've shipped features for education, finance, and gaming, leading teams and delivering high-performance apps across iOS, Android and web platforms. I'm passionate about clean architecture, test-driven development, and mentoring teammates to grow. I enjoy learning new frameworks, contributing to open-source projects, and exploring the intersection of mobile apps and blockchain.

Santiago Wu

Developer, Web Developer, Front-End Developer, +6

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I'm Santiago Wu, a mobile engineer based in Singapore. I specialize in building robust iOS apps and integrating cutting-edge tech like AR, TRTC, Solana and Ethereum into delightful user experiences. Over the past decade I've shipped features for education, finance, and gaming, leading teams and delivering high-performance apps across iOS, Android and web platforms. I'm passionate about clean architecture, test-driven development, and mentoring teammates to grow. I enjoy learning new frameworks, contributing to open-source projects, and exploring the intersection of mobile apps and blockchain.…I'm Santiago Wu, a mobile engineer based in Singapore. I specialize in building robust iOS apps and integrating cutting-edge tech like AR, TRTC, Solana and Ethereum into delightful user experiences. Over the past decade I've shipped features for education, finance, and gaming, leading teams and delivering high-performance apps across iOS, Android and web platforms. I'm passionate about clean architecture, test-driven development, and mentoring teammates to grow. I enjoy learning new frameworks, contributing to open-source projects, and exploring the intersection of mobile apps and blockchain.

Available to hire

I’m Santiago Wu, a mobile engineer based in Singapore. I specialize in building robust iOS apps and integrating cutting-edge tech like AR, TRTC, Solana and Ethereum into delightful user experiences. Over the past decade I’ve shipped features for education, finance, and gaming, leading teams and delivering high-performance apps across iOS, Android and web platforms.

I’m passionate about clean architecture, test-driven development, and mentoring teammates to grow. I enjoy learning new frameworks, contributing to open-source projects, and exploring the intersection of mobile apps and blockchain.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

Chinese

Fluent

English

Fluent

Work Experience

Senior iOS Developer at EF Education First Asia-Pacific R&D Center

January 1, 2024 - Present

Led daily EVC SDK feature development (Hyper Class PL & GL) and deeply customized integrations with ARTC and TRTC. Performed large-scale refactoring of the core codebase and added extensive unit tests to improve stability. Replaced embedded web components with pure SwiftUI, optimizing memory usage and enabling a responsive iPad UI. Fully migrated legacy Objective-C code and refreshed the SDK public APIs to be more ergonomic for developers. Focused on performance optimization and robust testing to support rapid feature delivery across the APAC region.

Tech Co-Founder at Chongqing Clinkz Internet Technology Co., Ltd.

June 1, 2025 - September 8, 2025

Co-founded a web3 gaming startup; led iOS product prototype from concept to MVP; integrated Unity game code into the iOS client. Developed a DeFi wallet supporting Solana and Ethereum. Authored and optimized Solidity contracts (ERC-721A, ERC-5058) with gas-efficient minting. Used Rust to write smart contracts on Solana. Participated in the Singapore GameWave hackathon, achieving third place.

Mobile Team Leader at CyberConnect

December 1, 2022 - September 8, 2025

Built CyberConnect SDKs for iOS, Android, and React Native (native and cross-platform). Enhanced mobile performance for the Link3 web platform, achieving a Lighthouse score of 9.8+. Contributed to the development of live CyberConnect smart contracts and conducted research on ERC-4337 account abstraction to inform roadmap.

Mobile Team Leader at CoinMarketCap

April 1, 2022 - September 8, 2025

Led a 10-member team. Directed development and architecture of the iOS client and contributed to the Android client. Improved app performance: frame rate increased from 48 FPS to 59 FPS (23%); startup time reduced from 1.2s to 400ms; main page loading improved by 40%. Optimized real-time data updates using WebSockets and binary streams, boosting transmission efficiency. Built reusable Flutter components to speed iteration. Managed recruitment, requirements, technical problem-solving, code reviews, and alignment with U.S. product/design teams.

Senior iOS Developer at iHerb

April 1, 2020 - September 8, 2025

Scrum Master for the iOS client. Refactored the shopping cart page and developed a configurable home page. Collaborated with the global client team for the OneCodeBase migration plan.

iOS & MacOS Developer at Cisco

September 1, 2019 - September 8, 2025

Communicated requirements and provided feedback to the U.S. product manager. Developed business logic for iOS and macOS platforms. Used Flutter to create reusable components such as Calendar and Selector. Built a development log analysis system using Shell. Managed real-time document updates and conducted code reviews. Designed UI components and researched new technologies. Awarded the 2019 Team Star award.

Lead Mobile Developer at China Mobile Communications Corporation

July 1, 2018 - September 8, 2025

Led the architecture and development of the Country Life app from scratch to launch. Built an internal instant messaging client with text and multimedia messaging, group chat, and integrations (Sharing, Maps, Single Sign-On, Tencent Chat SDK). Implemented live video streaming and online payments. Led development of the in-house product 'Wei Jia' and earned a bronze award in the group’s development competition. Received Outstanding Contribution Award in Q4 2016 and the Department’s Annual Outstanding Employee Award.

Senior iOS Developer at EF Education First Asia-Pacific R&D Center

January 1, 2024 - Present

Led daily feature development for EVC SDK, including Hyper Class PL & GL; performed refactoring and optimization, added unit tests, replaced embedded web code with pure SwiftUI for memory efficiency and responsive UI on iPad; migrated legacy Objective-C code to enhance public APIs.

Tech Co-Founder at Chongqing Clinkz Internet Technology Co., Ltd.

June 1, 2025 - September 8, 2025

Co-founded a web3 gaming startup; led product prototype development from both product and technical perspectives; integrated Unity game code into the iOS client; developed a DeFi wallet for Solana and Ethereum; built and optimized Solidity contracts (ERC-721A, ERC-5058) and deployed NFTs with low gas; wrote Rust smart contracts on Solana; participated in the Singapore GameWave hackathon and earned third place.

Mobile Team Leader at CyberConnect

December 1, 2022 - September 8, 2025

Built CyberConnect SDKs for iOS and Android (native and React Native); improved performance of the Link3 platform, achieving Lighthouse scores above 9.8; contributed to live CyberConnect smart contracts; conducted research on ERC-4337 account abstraction.

Mobile Team Leader at CoinMarketCap

April 1, 2022 - September 8, 2025

Led the development and architecture of the iOS client and contributed to the Android client; optimized app performance (frame rate up to 59fps from 48fps, startup time down to 0.4s from 1.2s); improved loading times by 40%; optimized real-time data updates using WebSockets and binary streams; built reusable Flutter components to speed up iterations.

Senior iOS Developer at iHerb

April 1, 2020 - September 8, 2025

Served as a Scrum Master for the iOS client; refactored the shopping cart page; implemented a configurable home page; collaborated with the global client team on the OneCodeBase plan.

iOS & MacOS Developer at Cisco

September 1, 2019 - September 8, 2025

Developed business logic for iOS and macOS platforms; used Flutter to create reusable UI components such as Calendar and Selector; built a development log analysis system; managed real-time document updates, conducted code reviews, and explored new technologies.

Lead Mobile Developer at China Mobile Communications Corporation

July 1, 2018 - September 8, 2025

Led the architecture and development of the Country Life app; built an internal instant messaging client with text, multimedia messaging, and group chat; integrated features such as sharing, maps, single sign-on, Tencent Chat SDK, live video streaming, and online payments; led the in-house product Wei Jia and earned bronze in the development competition; received Outstanding Contribution Award.